Printing telegraph apparatus



sept- 943. c. A. LEVIN ETAL 2,329,206

' PRINTING TELEGPAPH APPARATUS Filed Sept. 20, 1941 4 Sheets-Sheet l INVENTORS CARL A. LEVIN 88 CARL W. SWAN ATTORNEY p 14, 19 3. QA. LEVIN '5 AL 2,329,206,

PRINTING TELEGRAPH APPARATUS Filed se t. 20, 1941 4 Sheets-Sheet 2 INVENTORS CARL A.LEVIN CARL W. SWAN ATRNEY' Sept. 14, 1943. c. A. LE VIN ETAL 2,329,

PRINTING TELEGRAPH APPARATUS Filed Sept. 20, 1941 4 SheetsSheet 3 IN V E N T 0 RS CARL A. LEVIN CARL W. SWAN fisi ATTORNEY Sept. 14, 1943. c. A. LEVIN EI'AL 2,329,206

PRINTING TELEGRAPH APPARATUS Filed Sept. 20, 1941 4 Sheets-Sheet 4 -flum [83 v H! '82 tNVENTORS CARL A. LEVIN CARL VLSWAN ATTORNEY cranks which are'selectively set in responselto'l' there are provided printing set for -'operationby cams on thesinglecamishaft shaft for performing-fthe printinggline spacing;

also 'selectively set the a typeselecting icodeEdiscs, j

. the notches in the 'set'tablecode-bars and nor and permits any one of them-which is in iali'gnal Patented Sept. 14, 1943 t t rla-Levin and oanmvswan, chicagoglll as- Y signors'to el'etypecorporation,Chicagoflll a u 5 corporation of Delaware I Malaria eam nmnsaaim.411,65

. I I 112 ClaimSf.'

- This invention relates to.' printing telegraph apparatu andmore particularly to pageprintei ing type wheel telegraphic recorders: '1 The principal .object of the invention isthe provision ina type wheel recorder'of.a ':simple; mechanism which efiectsvselection of functional instrumentalities i for operation simultaneously: with the selective sttingxo'ftthe typeiwheel se" lec'ting mechanism. :11; r a war If The invention features an, apparatus: in? which v the setting of typewheel controlling'lcode discsis effected by" a selector which, simultaneously-l 'efiectsthe setting of codelbars which control the ,selectionof function mechanismswzk Ini'accor'dance with one embodiment of vention as applied to telegraphprintersiof. the" general type disclosed in thecopending 'applicae.

May, 1936, andPatent No. 2,24=7,408 issued to AlbertI-I. Reiber, July '1,-;-194 1-, the, transfer :bell

the received signals thereby. to set the notched F code discs for selectingtype'for -actuation;;.also; set aseriesof code bars which control the selecef. tion of function levers for actuation. "In: the" structure of the -present invention, only one cam I shaftis provided as'in the structurerofiReiber application Serial No. -77, '796, -but the lastl char-.-. acter of a message is printed without thenjeces-i sity ofutilizing an idle cycle of -the apparatus, and no characters are stored in theprintingspor-l-l tion'of theapparatus. In the presentjst'ructur'e' bail and function-i; These" twoibails .are f bail controlled mechanisms and are spring actuated substantially simultane-j' ously at the end of the cycleof the camshaft.

' It is unnecessary withthis structure tojleavebtlrlev last character stored or to provide an extra eam 40 and other" functions, due to the fact that the functions are selected simultaneously with athesettingup'of thetype wheel to seleetcharacters to be printed "The function selecting mecha'e nisin comprises, in addition'to the settable code? bars set under" control of the bell cranks whi'c'h.

a series or functioncontrolling--leversfiurgedinto mally'held out of the notches in the co'd'e'ba'rs by affunction restoring member whichata pre-" determlned time in the cycle o f oper ationoi'the apparatus releases thefunction" controllinglevers ment' with -aligned notches the code barsfto" 20 a the Ifunction' bars to operating or operative po-."-

a l-in o th od a s-th r lbr t-t h function levers to select one or the other; ofthe functionj arms ;for operation. There are seven of the function controlling levers provided and a they are normally spring-biased for selection by the code bars. :gThesefun'ction controlling le vers are the line-feed lever,::blankfunction; lever, bell function'lever, carriage return lever, or shift leve lett rs for unshilft:llevenea d' unshi t on space, -function-; lever; and; th ver w'eontrol, theperformance of the'various functions as ill -f dicated' by their ,nari 1e s.f i Uponthejselection of 7 any one: of the lin feed; bell-or break lock func:

tions for operationnby the-function controlling levers, the particular .function to I be performed will be effected by itsfunctionbm under the control ofQthe function bail cam; which as-jpointed out .her'einbefore, operates simultaneously with eration and which normally (tends to move all of sition.

In theaherein' tr the present invention thereis provided a'type wheel;

arresting." mechanism which'fllncludes a type Wheel'elevating cam for actuating atype wheel elevating .bell crank, onearm ofwhich is cone, n'ected to theplunger of adashpot, andthe other arm off'wh'ichis connected to a cammingj rod f0l -lifting a typewheel'supporting frame a predeter'e I mined; amount with respectto. a: frameguide. in each signal receiving cycle of the apparatus: The; carriage-supporting frame and framev guide are movable as a {unit :upon: the receipt of. a shift; orfiguresco'de signal, and: unshift' or letters code signal, therebyto select arow of typeon the type wheel for printing in upper or. lowercase characters. lni theinormal operation of the apparatus; the type wheel will stay in its-elevated position solong as' code signals arenbeing re-V ceived by the a'pparatus'at apredetermined rate of speedjdue tofthe effect of the ldashpot on the typewheel lifting bail in. resisting the type. wheel.

elevating bell crank in' its movementtoward nor-j Inal position." However; *upon cessation of message reception by the apparatus or when theret'is a slight' pause in: the transmission of signals, the

type wheel liftingbailspring willmove-sthe cam f roller on the "type .whe'eljlifting bell cranklinto engagement: witlilth'e lowir'portion ofxtheitype" wheel lifting bail cam, thereby to render. thewlastf line'of printed; material visible. Some of therfea:- turesqdisclosedbut "not claimed herein are claimed in .the :copending application ofuCarl A.;

A better understanding of the invention may be had by reference to the following detailed description when considered in conjunction with the accompanying drawings, wherein:

Fig. 1 is a front elevational view of apparatus embodying the invention;

Fig. 2 is a side elevational view of the apparatus shown in Fig. l v

Fig. 3 is a fragmentary viewin perspective of the apparatus shown in Figs. 1 and 2, showing 10 some of the details of the invention;

Fig. 4 is a fragmentary plan sectionalview taken along the line 44 of Fig. 1; 3 1 I Fig. 5 is a fragmentary plan-sectional View 7 taken along the line 55 of Fig; 2"; .1

Fig. 6 is a fragmentary sectional plan viewon an enlarged scale, taken along the line 8 6 of Fig. 2;

Fig. 7 is a detail sectional view taken along the 7 line 1-'l of Fig. 6; 20

Fig? 8 3 is a fragmentary sectional view tak'en alongthe-lin'e 8 8"of Fig. 6;" a f v Fig: 9 isanenlarged fragmentary sectional view taken 'on' the line"9"-9 =of Eig. 2'5 and i Fig. 10 is afragmentarysectional pia'n mewtaken ozi th'e line "l -l il of", 2. .7

Referring-to thedrawings wherein like'reference charactersdesignate the same parts throughout I th'e seVeraI' views, particular reference is fi-rst had:

to'Fi s. 1 and 2 where; in front an'd side-elevation, there areshown portions of 'a base or framework member H parts of which have -been broken= away to con's'erve space: The details otthe 'base. or fr'amework'memb'er I l havenotbeen'complete 1y shown since this-portion I of 'the :appar-atus is I 5 substantially-the same as that shown kin "Patent No.; 2,247,408; granted July l, 19'41,' 1to Albert Hr Reiber; Similarly-the specificidetailsc-fithekeyr board mechan-ism'mot shown) andrthedetai'lsofi v the distributor 12; which is-shown herein need Inot 4.0 be described fully in this ;application' 'since theysare of exactly the same construction as in Reib'er Patent No. 2,247,408; As -insaid pa-tent, a-motor l3 is suitably mounted upon theibase'or framework I I and suppliespowerf for; driving the vari- 4'5 ous parts i 01: the apparatus through its driven shaft l4, Fig.' 4.-

The shaftl4 'has fixed to it a';driving-.:gear l5;- which mesh'es with a typerwheel shaftiggearz l6 M anda camshaft geari I'L The distributor lz lis 50 driven from the-"cam.- shaft 2 gearx l I. 1 through an;

intermediate-distributor driving gear ,I 8- ('Fig; l) mounted on a' shaft [9; the lower *end of: which carries a worm" gear 20=whichin turn meshes-with agear 2l (Fig.' 2) on a= distributor shaft=22;- The typeawheelshaft gear lfi-ismountedlontypewheel shaft 2'3 whichhas a type-wheel 24-2 slidablykeyed to it. The-type wheel and type wheel 'shaftare normally .urged to rotate by;. fric-; tional clutch mechanisms 'not, shown. herein; :but- 65 shown in detail in Reiber Patent No: 2,247,408 topresent the type:pa1lets in the;type wheel selec tively 'intoassociation with a :plateni 25 .where; they'may be actuated byva' print-hammer 26;? The; I platen '25, its carriage designated generallypby the; 35% numeral 21yand the code discsforselectively stopping the type wheel at "selected positionsjarethe same as in" the:. afore-mentioned copendingz application and patent of Albert- H.'.Reiber.-

The selector mechanism, as shown generallyzin 76" the various figures andeas designated eye the ref erence numeral 30, .isl'of ithelsame construction; as that shown'in 1theReiber= application:anflpatentf mentioned hereinbefore ahd needrnott be :def-: I l scribed in det'ai'lihereinw It sufficesto statezthat the selector mechanism is mounted on the main shaft 3| which also supports the main or cam shaft drive gear I], the gear I! being fixed to the shaft 3|, and the selector mechanism being frictionally urged to rotate with the shaft 3|. In the present embodimentof the invention a single vcam shaft is provided as in said copending application SerialNo. 77,796 and upon,the receipt of "a starting impulse in the" selector fmechanism 30 and initiation of operation thereof, the clutch throw-out lever 32 (Fig. 1) will be removed from engagement with driven clutch sleeve 33 and will permit -a-spring '34 to force the sleev 33 into engagement withadriving sleeve 35 keyed to the shaft 3|. .Thed'riven clutch sleeve 33 is keyed to tion bail-cam as;- and a type wheel lifting bail cam-39, together with a printing bail cam 4!) (Fig.1). The cams 31, 38, 39, and 40 on the sleeve 3B have a'sso'ciat'edawith them mechanisms for effecting the functional operations: under the" control of the cams. a 1

The. selection" forsoper'ation rof the various functional mechanisms is under the direct control of theselector mechanism 302 In the presen'tappa rattle: the: selection 3 of type pallets :on the type M r are" set under the: joint controlv of a'selector shaft and electromagnet (notshown herein butclearly illustratedih'iithfi" said It copending: application and patent 1' to Albert H. Reiber)- for controlling&.the-"setting; of-transfer levers 42:- Assoelated with-"thez transfer levers 42 are a series ofcode'disc 21evers =43; one for each: of the'transier;

leverszand' similar tobut not exactly the same-as thosenshown in said: copending applicationand patent. a In the said 'copen'din'giapplication and patent; :the* code disc-1evers-are simple bell; crank levels; but in' the 'present invention thecode disc levers-each have an additional- Jarm 45vformed on" them havin'ga rounded tipAfi-which' extends into a sloti41 ina code-bar48 associated with each'of the; code disc'leversj43; The transfer levers are pivoted on pivot z'studs .49 and: receive the-ex tending-:armrofithe code-disc levers in-their bi furcated ends,;-as showing-most clearly'inFig: 5, whereas: the levers 43 "are pivoted-on apin or shaft 1 50;. whereby. the positioning :of the transfer leversi lz will efiecta setting of the' code disc le-- verst43 :thereby to set the .code discsi 4;4 -and select type: pallets in 1 the 1 type wheel- 24 for: actuation when a character is -to be printed; Similarly, the. settingof the'codedisc levers '43 will effect a settingrofrthe code bars ;48;-which are spaced "apart; bya'spacer;members"5 l- (Fig. 2;);and are slidable; on posts l 52 and 53 extending upwardly,fro a plate 541;. Thezedges of thegcode bars; 48 opposite: toithevslots 4! are notched-to ,select permutatively. any one of' seven functioncont-rollinga-bars 55* to;

6:l;.inc1usive, by permitting a -selepted bar-toja into aligned notches in the codebars 48-underytheg urging ;of'z-its biasing spring; one Of' WhiChis proa vided for each-ofithe'function controlling bars55.

to. The function controllingbars 55 toil} are pivoted on apivot rod 62' mounted on-a stationary plate 63,; bentfover portions thand fieof'which: support the :pivot rod 36b The 3 function pontrol ling-hbars 55-1to 6 I; control the furc t ior -1s; -of I line feedifblank;bell carriage;return,=figures--o shit-t;

lettersuor 'unshiit, and llnshjftfon spaqe respecrod 62,-its projection 19,80 or 81 tively. The mechanism cooperating with the long arm of the, bar 10 into the path of the function controlling bars will be described hereinafter together with their operation in the order just named. I

.Upon the receipt, in the selector mechanism 30, ofra line feed signal code combination,.the linefeed function controlling bar 55 will be permitted to drop into aligned notches inthe code bars l8 under the influence of its biasing spring'which urges it to rock counterclockwise, as viewed in Fig; 1. H Cooperating with the functioncontr'ollingibar 55 315 'a line feed bar 10 whichitogether with abell' bar Hand a breakelock bar 12 are pivoted on a post 13 (Fig. 3) fixed to a function bail". The bars 10, H, and, 12 are suitably spacedon the post 13 which also carries aspacing' bar 15 anda resetting bar 'lei The function bail 14, which carries the post 13 on its two parallel arms, is pivoted on a function bail pivot 11 and carries-a cam roller 18' on its forwardly extending;

arm, which cam roller is in engagement with. the function bail cam 38. The bars 10, II, and 12, as most clearly shown in Figs; 3 and 4, are bifurcated'toprovide two rearwardly extending arms, one of which extends into the path of projections 19, 80, :and 8| (Fig. '9) a on the function controlling bars 55, 56 and15'l, respectively; It should be noted that the arm of bar 10 is in alignment with the'projection 19, that the arm of bar H is in alignment with the projection :8I, and that the arm of bar I2 is in alignment with projection 88. The bars l8, H, and 'lz are normally urged to into engagement with 3, line -feed Iratchet l82- V shoulder 90 of gfunctionlever 81. As-the func-r tion bail cam 38 rocks, function bail 14 in a counterclockwise direction, the entire assembly,

of the bail 'l4;and ;the function bars 10, H, 12-,

15, and :18 will be movedbodily toward the rear of the machine, and when theline feed bar 10 has beenrocked clockwise with respect to the bars 1 I -,and 12,-.,its rearend willengage the shoulder '90 on line'feed function lever 81 to rock the function lever 81 in a counterclockwise direction aboutqa post,93 which supports it and;

the function levers 88 and 89; The function lever;8| isarticulated to a link 94 which is in turn connected to a line feed ball 95. Thedine feed ,bail 9,5 :is pivotedon the framework at 98 IOI pivoted at its upper end and normally urged connected to, the platen 25 for effectingline feeding operations asdescribed more in detail in the patent grantedtoAlbert H l 'teiber, No.'2,247,4 08 .1

If a blank, signal, that is, a signal of ,five

' spacing impulses, is receivedby the apparatus,

springs-82., 83, and 84, respectively, which are connectedto the forwardly extending portions of i 12, respectively, and are fixed thebars 18, 'H, and tea post 85 extending upwardly from the lowermost one of the two parallel arms of bail"; The biasing springs 82, 83, andi84 attempt to draw the post 85"and the outer ends ofthe barslll, 1 I, and 12 together, thereby serving two purposes; that is, the spr ings attempt to rockthebars 'll 'll; and. 12 counterclockwise (asviewed in Fig 3) about the post 13, and since said bars areblocked'bythe projections 19, 80, and 8| on-thefunctionzcon trolling bars 55, 58,- and 51, the springs 82, 83, and 8flwill tend to hold the cam roller 18 in engagement 'with the cam However, whenever one of the function controlling bars 55, 58, 0151 is permitted to rock co'unterclockwise as' viewed in Fig.1 about the pivot will rock the'linefeed 'bar 18, bell bar"'|l,"orbreak-lock bar 12 against the actionofits'associated spring82, 83, or 84, thereby to move the rear end of the selected bar 10,11, 0r 12 into'position tolactuate its associated function mechanism. i "Positioned adjacent the rear of the machine are three function .levers 8'1, 88, and 89 .asso-, ciate drwith-the line feed, blank, andbell functions and having shoulders 98, Si, and 92 (Fig. 10) respectively,,-formed thereonforengagement by the line feed bar 78; break lockgbar 12, orbellbar 'iLprespectively, whicheverbar 10, H, or lfirhasbeen selected forgoperationa If it, be assumed that the: line feed bar 18 has been selected for operation by "the proper positioning of the code bars 88, bar [8 will bepermitted to rock to the clockwiseposition (as viewed. in Fig.

surface ofthe cam 138,

mate counterclockwiseposition the-break lock prising marking impulses'in the the functioncontrolling bar 58-,will be permitted, to drop intoaligned notches in the codebars 48;

and; ingso doing will move; its 7 projection 88 against the'break lock bar 12 thereby to move the rear end of the breaklock bar" into alignment with the shoulder 92 on functionlever 89, whereby,

when the function bail fl4- is rocked to its ultibar 12, will rock function lever 89 about thepost ,93 tojclose'a pair of'contacts not shown, but associated-withthe function lever 89 and'perform the: break lock function as described more nv d a lin the pate t ran d o Al e Reiber, NO. 2,247,408,-

. I fwthe function controlling ba s"; is selected by the code bars 4 8 presenting aligned notches for-receivingthe function controlling bar 5]due to the receiptbythese1ect0r mechanism'; of a signal representing the character impulse periods -and spacing impulses in the third, fourth and fifth impulse periodswhile the typewheel supporting frame is in upper' case position, as will be described more in detail here,- inafter, the bell bar II will be; rocked in a clockwise direction (Figs. 3 and 10) against the action ofits biasingspring 83, thereby to carry the rear end of the bell bar 1| into the path of the shoulder 9] on function lever 88, whereby whenfunction bail cam 38 ,rocks function. ball: 14 in a counterclockwise direction (Figs. 3 and 4), the rear end ofythe bar II will engage the shoulder 9| on function lever 88 andmovelever 88 counterclockwise (Fig. 10) against the action ofits biasing spring -,l83.- When the low portion of function bail cam 38 moves, into engagement with the roller 13, spring as will restore the, bell bar II to its normal position and'in so doing will of, arcarriage return code signal, the code bars 48-will be so setthat there, willbe aligned notches in vthem at the point where they are engaged by the carriage return function controlling bar: 583- The function controlling bar' '58 will-"thus: b'e allowed to iall -into the l aligned notchesund'er the action of its' bi as'in'g' spr'ing and in so 'doing will be permitted to rock in counterclockwise direction, -as= viewed l in E1 The l function controlling-bar 58 for carriageretu'r ri h'as alat erally extending portion l I 6 (Fig=. 4) whichiter minatesin an upwardly: extending: projection I I1, Fig'si 4= and 6l The:projecti'on -I I'I enters' into-a--slot--I I 8 in a link I I 9 which is'intmn ar-" ticulated toa'dever I28 pivoted at I III-and- -hav ing=a rdunded formation at its free en'cl ior en-* gagement witha triplevei- I 2 If Trip 'lever I 2 I l is=pivoted ona pivot-stud I22 1 an'd is 'normallys urged to rock in a clockwis'e direction (Fig.4) 1 bya contractile spring I23- 'conhected"tdthetrip' le'v'er -I2I anda" latching lever" IN;: The trip lever I 2 I is 2 provided with a cam 1 surface I 25 bearing-against a projection I 25 on'a pawl supporting member I21 which carries adjustably: fixed -"thereto a pawl I 28 and which is' I normallyurged-torotate in *acounterclockwise directionby a biasing sp'ring I295 When the-projection- I I1 on th'e carriage returi-i controjlling bar 1 58 1s moved} to the right as viewed-in -Fig.-' 4,- the -link'. ||9 Wl11 impart movement in =a clockwise directi'on to th'e lever I;- thereby to rock the trip lever ina counterclockwise direction and move the camming 1 surface I thereoi to the left, Fig. 4, torock latching pawl- I28out of engagementwit'hthe-spacing ratchet I30; The spacing ratchet l3fl -is fixed on a carriagefeeding shaft I -3-I which-drives the carriage in exactly thesam'e manner as the carriage is driven= in the structureof--the"copendin"g applicationi The rear end of 'lever I2I" has a"shoulder= I32 5 formed thereon which will beengaged with the latching-lever I24 when trip le'ver IH is' rocked' function bail 14." The spacing bar 15 is provided"v with anarm designated 1 5A- which extends across in front'of'the bars 55 to BI so thatfif tany funce tional operation is selected for operation :in a definite predetermined cycle: of'the apparatus,

the spacing-ban will be rocked "clockwise about the post "13 to prevent the Y engagement of the? pawlportion" I33ithereof with? the ratchet I305 In 'COIIIIGCtlOnC-With the carriage return andx:

spacing: operations 1 which have .:just been described, it should be noted that there :is provided? 0n=thpDSt 13- the resetting bar I6 (Figs: 3 and 4) whichtis invariably operated through the" same path each: time the function; bail P 14' is rocked' bysits associated eam 38. Thisvresettingov bar serves to reset the .tripilatch'or 'latchingza lever ;I 2 lainp'the cycle of theiapparatus;fo11owinga cycle in' which a: carriage return functiorr' was effected. The bar 'lfifhasan upwardlyzextending: projection: I 38 formedaon-it: as most clearly;v shown in Figs;- 3 Cand' 4' for cooperation with aresetting-'- mechanism of exactly the same "construction as that shown. in theyafore-menti'oned .copendingv application of Albert H; Reiber; Serial N 0577,7961;

The figures or shift COIltl'OlllHgFfllIlCtiOIl "ban fiarwillbeselected for operatiorr by the code'bars 48 upon sreceipt in: the 'selector mechanism *ofa ffigures'rshiftt signal, and when; selectedin-- this manner, the-figures." or-shift' function-.-

controlling bar 59: will rock in'a clockwise di--- rection, Fig. 1; Pivotedon the rod 62, asmost clearly shown in-Fig. 7, isa ijbellcrank' lever I50 which is biased to rotate in a clockwise direction by its biasing spring-I52, and which carries aing arm: The -rol1er. -l5'Ipis held in the -path-of the functi'on; controlling 'bar '59 and when the functioncontrollingbar 59 is rocked in a--coun-' terclockwise direction "bypits biasing spring due in 'a-counterclockwise direction-g Fig."4;-spring 40x toithe alignment of notches in/the codg-barslB- I23 opposing the counterclockwise movement of lever I2I and causing lever- I24 to rock clocklecti-ng bar '58 is selected by the'code' bars 48- daemo -the engagement ofthe' left end; Fig;- 4, of the= latching lever" I24 with the shoulder I 32 on-=lever I2I, until lever I24 -is rocked maeounterclockwis'e direction against 1 the actionof itsbiasing spring- I23;- as will describedmore in detail hereinafter; f

The right-side of-"th'elever I-2'I as view'ed in Fig; 4,- also constitutes 'a" cam surface for en gaging a pin I39fixed in the spacing bar I5 'to hold-'a pawlpor-tion I33'of the spacing} bar I5- out 'of engagement with the teeth of the ratchet I 30 whenever the carriage return function 'has: been performed; It should be noted at this time thatthe bar I I5"-is: normally urged into; a posi*-' tion where the pawl portion -I33 'thereofwill enfl gageth -teeth of the ratchet I30" by a spring- I34so that in normal operation-of the apparatus thespacing function :will take place for each cycl'e' of :the apparatus; It should also be noted that the spacing' bar 15 -is'not positively driven byithe=function bail I4 but is permissivelyudriven' due to the construction of the bar- 15 as -'most" clarly 'shown in Fig. 4; wherein the bar2'15 has a rectangular 'opening I35 formed therein in which a spring I 36 is :positionedgone end of-"the springibearing against" the endof the opening: I35 and A th'e" other end 015 3 the :spring F bearing again'st a collar I31 on the post -l3 'fixedi to the associatedlwitl'r it, the bell-crank I50 -will*also:- ber rocked in-acounterclockwisedirection due to' the'engagementiotthe roller I5I with the rightrhandsurface, Fig. 7, of the functioncontrolling bar 59.;

Thea-bell crank' I50 is dered' portion I 53 "Whichis-normallyvurged over ahorizontally extending arm I54-ofta case-shift leverd 55 to'restrainthe case-shift lever I55-fromrockingxbeyond aidefinite-position in acounter-'- clockwisedirection as viewed in Fig: 2." The case shift lever "I 55 is pivoted at I 56 ;on-a-stationary'= portionofthe 'frame of the apparatus-'and is urged to rroclc in a counterclockwise direction by aspring I 5] to carry aprojection I58 formed on oneiof the'arms of the: lever I 55 into engagementn withi'anextension 0f the function bail cam-"lb as shown most clearly in "liigs; 2- and' 3. Theend of the spring I5] opposite to that secured to the "caseshift lever IE5: is secured to a pin' I59extending horizontally from a ribbon feeding lever I603 The ribbon feeding lever: I IiIIvis pro; vided" with a downwardly projecting "extension I6I which" engages the one side of the extension onthe function bail Mythus tending to hold 'the extension I58 and the projection IBI in engagement with opposite sides of'th'e extension on thebail' M; to causeithem to follow thejm'ovem'ents of: the *bail '14: However, if the shoulder:

i53 'on the-bell crank- IEBY -(Fig. 7) isin'the'path" roller- I 5 I on its substantially vertically extend-1 provided with ashoul-- l54=due to; the receipt by the apparatus of a jshiftffunction signal the lever fl55 will be perrriitt'edto'rock farther in a counterclockwise direction than-it would if the shoulder I53 were in 'thepath of" the extension I54f0n the lever I 55." When the shift function signal is received, the type Wheel 24 will be lifted'to its maximum height as will be described more in detail hereinafterto print upper case or figures characters, ;in afmann'e'r similar to that described in detail i i-the Patent No. 2,247,408. A 'ca-mming projec- 1 tion I52 on the lever I55 is 'a'dapted to engage an arm'IGS' on a ca'seshiftirig frame I64, 'whi'chis slidable'tofeitherof two positions on a guide-pin 165} Apair of-shouldered members I66 and I61 also "aid' in guiding the carriage shifting 1 frame I64, and these members IBBandIB'I arefixe'd in a type wheel supporting frame I88." The'type wheel supporting frame 188 is 'slidable on a pair of posts I 69 and I19, similar to the guiding' posts forthe type wheel -sup'porting frame shown in I r jthe 'copending application' of' Albert I- I Reib'er mentioned 'hereinbefo're."

- Thecaseshiftingframe I64, mostclearly shownin Figs 2,-'-and 3, 'is' provided with La",

' horizontally' extending "blocking portion I12 which serves to block'the bell function bar 51 from falling into the aligned notches on the code bars Mrupon the receipt of a signal in the selector mechanism representing the-letter S" in the lowercase and bell in theupper' case. This "blocking portion I12; when, the]; case shifting frame I64 hasbeen shifted to itsupper position path of movement'of thefunction controlling bar "GI wherebyupon 'the' selection of either the 'function controlling bar 69 or the function controlling bar GI and itsconsequent rocking in a counterclockwise' direction" as viewed in Fig. 1,

' ;the bell crank I89 will be rocked in a counterclockwise direction against the action of its biasing spring IBIJ "Thus, the normal position' of fthe bell crank lever I89isas shown inFig. 8, g to which position the bell crank lever =l89-had beenf niove'd by the receipt in the apparatusof a spa'c zinfg-"or unshift signal, and" wherein "a lower shoulder I84 isshown engaging aportion I85 of the case shifting frame I645 to hold] the case shifting frame I64from dropping below the pofsitionas; shownin Fig. 2.1A second shoulder I86 is also provided onthe bell crank lever I80 for engaging the ,portion' I85 "of the-case shiftfing'frame I64 when the case shifting frame I64 has been liftedto its uppermost position byengagemerit of the projection] 62 with the arm I 63' on the case shifting frame I54fand the-release of the horizontally extending arm I54 of lever-I5 5 by'the bell crank lever I59. Thus, upon the "receipt of a shift or I figures code signal in the apparatuaandthe consequent release of the arm I54 from the shoulder-- I53, the case shifting frame I 94 will beliftedtoits uppermost posibell 'crank lever I89 whose shoulder "I86 will frame-"I64 until a n unshift or fletters, or word-,

orthe figures casewshift position; will'be out of the path of the "fbell"function controlling bar 51 and the bellf function fcontrolling bar .5'I vt' illbe permitted to drop into theialigned notches in the code bars '48 upon the receipt or afsignal representing .bell or,S. It should'be noted at, this time that'the blocking portion ITIZ of the case shifting framej I64 extends. over function v controlling bar 56 which controls the blank funcv present aligned notches, to rthe unshift function controlling bar 559 thereby to permit its-biasin spring to rock it' counterclockwise; asvviewed in 1. ,Similarly, upon the receipt ofa word- I spacesignal, the un shi'ft on space function controlling bar, 6 I. will be permitted-to rock inbounterclockwise direction, as viewed in Figs 1, into aligned notcheson the code bars 48. Sinceboth;

of the function controlling barsfill and 6;I ,c0n'- trolthe'sanreffunction, that is, the unshifatfuncw tion, their. operation'willbe described at the same time.

"I 'Pivo'tally supported be thefrod s2 iel -efbeu 'crank189 (Fig. 8)]Which is "positioned between thefunction controlling barsfill "and 6|" and is urged to rotate in'a clockwise directionabout ,fth piVOt rod 82 by 'a biasing spring I8I. vThe "horizontally extending arm of the bellcrank V lever I80 hasa spring I8 I connected to it,-and

v,the' vertically extending arm, 'as vi'ewdin 'Figs.

d3, j a rri'eis a pair of abutments I82 and, I83, "the abutment] 82 extending over into the path of l, n1ovementf of 1 the function controlling bar 60, f

"and the abutment I83 extending over "into the tion by the'type wheelelevating lever I55 and will be latched in its'upperm'ost position by the moveunder the portion I85 ofthe caseshifting space signal is received in the'selector'mecha- "'nisl'nf 39." When an unshift signal is received in ii the selectonmechanism 3n, bell crank lever I88 will be rockedin' a counterclockwise direction as described hereinb'efore, and will release the por- 'tion' I85of'the case'fshifting frame I64 from the shoulder" I89 and pe'rmit portion I85 to drop 3 down onto the shoulder I84. As the case shiftmg frame; l 64 drops-to its lower-position, the bell cranklfifi will be permitted'to block the movement'of the lever I'and prevent it from lifting thebase shifting frame to its uppermost "position.

As described; hereinbefore, the case shifting frame I64 has two positions, and the type wheel supporting frame I68 ismovable with respect to the case shifting frame; Fixed to the case shift- 1 ing frame I64 adjacent its lower end is a'roller f I81 which is freely rotatableon a post I88 which "'also j supports a.'guide member I89. The shouldered member I69 is fixed to the type wheel supporting frame I68and carries a roller I90. "A'camming member I9! is guided between the 'f'guide member" I89 'andJthe case shifting frame "I84 and is "engaged betwe'en the rollers I88 and I99. Camming member I9! is loosely articulated on thefreeend of a type wheel elevating cam levelr I92 pivotally supportedby the function then pivot post'll and biased to rock in a clockfwise direction by biasing spring I93 (Fig. 3).

Cam lever. I92 carries a cam, roller I94 intermedia e the ends of its forwardly extending 1arn1'f,I95.j The 'arm 1950f lever I92 under the influence of spring I93 normally tends to hold thefcam roller 194 in 'engagementwith type ijwheel 'liftingbail 39, and arm I95 is slotted as factuatingdiscjfllill fixed to apiston rod or a shown at I96to engage or receive; a plunger "plungerlrod I98 (Figs, 3 and. 4). The plunger "rod I98 has ffix'ed to its left end, as viewed in Fig.

4, apist'onmember I99, which is freely movable "tonne right inadashpot Cylinder 200'; The

function mechanism, av type wheel selectively settable in each cycle of the apparatus, an additional secondary selector for said type wheel, and a signal responsive selector for directly and simultaneously controlling the operation of each of said secondary selectors.-

6. In a printing telegraph apparatus, a primary signal responsive selector, a type Wheel, a

secondary selecting mechanism for controlling the position of said type wheel, function mechanisms, an additional secondary selector mechanism for controlling'said function mechanisms, and transfer means for directly transferring selections from said primary selector to each of said secondary selector mechanisms.

'7. In a, printing telegraph apparatus, a primary signal responsive selector, a type wheel, a

secondary selecting mechanism for controlling the position of saidtype wheel, function mechanisms, an additional secondary selector mechanism for controlling said function mechanisms, transfer means for directly transferring selections from said primary selector to each of said 1 secondary selector mechanisms, and a single cam sleeve for controlling said function mechanisms.

for controlling the position of said type wheel, function mechanisms, an additional secondary selector mechanism'for controlling said func: tion mechanisms, transfer means for directly transferring selections from saidprimary selector toeach of said secondary selector mechanisms, and a single cam sleeve for controlling said function mechanisms.

10. In a printing telegraph apparatus, a signal responsive selector, a'type wheel, a set of code discs for controlling the position ofsaid type wheel, function mechanisms, a set of bars for controlling said function mechanisms, and transfer means for simultaneously and directly transferring selections from said selector to said code discs and said bars.

11. In a printing telegraph apparatus, a primary signal responsive selector, a printing mechanism, a secondary selector for controlling the operation of said printing mechanism including character selection, function mechanisms,

an additional secondary selector for controlling said function mechanisms, and transfer means i for simultaneously and directly transferring selections from said primary selector to each of said secondary selectors. 12. In a printing telegraph apparatus, a primary signal responsive selector, a type Wheel, a

secondary selector for controlling the position of said type wheel, a series of selectable bars for performing function operations, an additional secondary selector for selecting said bars, and

transfer means for directly transferring selections from said primary selector to each of said I secondary selectors.

CARD A. LEVIN. CARL W. SWAN. 

